by@satos___jp
WA
$ 'j' #(c){j}(x)#@ --(!x!)(!c!)(c)(x)g#-< $ 'main'@ #(x)(c)##@ |@ \-uo-- | \{j}i- \ ># 9 \ >u-1q/ \-1a--e/
3580835027819596542916358867778234254843978689150443719863505275111297381095954294105974565461341364